DACs · Side-by-side
SMSL DO100 PRO vs SMSL RAW-MDA1
The SMSL DO100 PRO and the SMSL RAW-MDA1 score the same - what's left to choose between is character, not capability.
See which one to buy
Too close to call
SMSL
DO100 PRO
A balanced lower-mid-range DAC with dual ESS chips, MQA, DSD512, and a tinker-friendly DPLL value control - solid sound that doesn't break records but offers great value.
Too close to call
SMSL
RAW-MDA1
A $240 balanced DAC/headphone amp with dual ES9039Q2M chips that doesn't sound like every other ESS box - warmer tonality, forward mids, and a flexible soundstage.
Sound signature, overlaid
Each axis is positioned from the review body itself. The same word-frequency model anchors every review on the catalogue.
| Axis | SMSL DO100 PRO | SMSL RAW-MDA1 |
|---|---|---|
| Warm to Bright | leans bright | sits near neutral |
| Relaxed to Analytical | leans analytical | leans analytical |
| Polite to Aggressive | leans aggressive | leans aggressive |
| Lean to Bass-heavy | no clear signal in the review | no clear signal in the review |
| Intimate to Wide stage | sits near neutral | leans intimate |
Specs, side by side
Manufacturer figures unless a measured value is noted; an em-dash means we haven't recorded that spec yet.
| Spec | SMSL DO100 PRO | SMSL RAW-MDA1 |
|---|---|---|
| Architecture | Dual ESS DAC + 6× OPA1612, XMOS – PCM 32-bit/768 kHz, DSD512, MQA | Dual ES9039Q2M (dual-mono) + 6× OPA1612A + XMOS XU-316 – PCM 32-bit/768 kHz, DSD512, MQA |
| Inputs | USB-C, Bluetooth, HDMI ARC, Optical, Coaxial | USB-C, 2× Coaxial, 2× Optical, Bluetooth (LDAC / aptX / AAC / SBC) |
| Outputs | RCA, Balanced XLR | Balanced XLR, RCA, 4.4 mm (HP), 6.35 mm (HP) |
| Weight | 1.50 kg (1500 g) | — |
| Dynamic range / THD+N | — | 132 dB (XLR) / 127 dB (RCA) / 122 dB (HP) |
| Output level | — | 5.2 Vrms (XLR) / 2.5 Vrms (RCA) / 8.2 Vrms (HP) |
Pros & cons, side by side
DO100 PRO
Pros
- Dual ESS DAC chips with 6 OPA1612 op-amps
- Balanced internally - XLR output sounds slightly better
- Bluetooth, USB-C, HDMI ARC, Optical, Coaxial inputs
- MQA / MQA-CD decoding, DSD512, PCM 32-bit/768kHz
- DPLL value control - rare end-user adjustability
- Multiple selectable digital filters
- Bright, functional front display
- Full aluminum chassis, ~1.5 kg
Cons
- Slight wobble in the (digitally stepped) plastic knob
- Tonality leans slightly analytical
- Soundstage isn't huge - just doesn't collapse
- Dynamics feel slightly soft, not room-shaking
- Aluminum body isn't the thickest
RAW-MDA1
Pros
- More premium feel than other SMSL DACs in the price range
- High-resolution LCD with tempered glass front
- Dual ES9039Q2M chips in dual mono configuration
- 6x OPA1612A op-amps and XMOS XU-316 USB interface
- 2.5W into 16Ω / 1.7W into 32Ω headphone output
- XLR + RCA outputs, 1/4" + 4.4mm headphone outs
- Silent operation - no hiss, no transformer hum
- Warmer-than-typical ESS tonality with forward midrange
Cons
- Doubled coax/optical inputs instead of BNC or AES
- Volume knob can be unpredictable on fast adjustments
- Slight digital glare above ~13kHz if you listen for it
- Not enough power for Susvara, HE6, or Tungsten
- High output voltages can clip downstream amps
- Bass is clean but lacks ultimate slam and punch
Which one to buy
Short version: the rubric calls this one too close to split - but what's upstream, what you listen for, and what your budget allows can each flip it. Here's the case for each.
The case for the DO100 PRO
SMSL DO100 PRO
- Dual ESS DAC chips with 6 OPA1612 op-amps
- Balanced internally - XLR output sounds slightly better
- The SMSL RAW-MDA1's main trade-off is one you'd rather not live with: Doubled coax/optical inputs instead of BNC or AES
The case for the RAW-MDA1
SMSL RAW-MDA1
- More premium feel than other SMSL DACs in the price range
- High-resolution LCD with tempered glass front
- The SMSL DO100 PRO's main trade-off is one you'd rather not live with: Slight wobble in the (digitally stepped) plastic knob
How they were tested head-to-head
Both the SMSL DO100 PRO and the SMSL RAW-MDA1 ran on the same chain, feeding the same Denafrips Hades 12th preamplifier into a matched speaker amplifier and the reference monitors, sourced from the Hermes 12th transport so the digital input is identical bit-for-bit between A and B. The two were volume-matched at the output and swapped across the same set of reference recordings - acoustic, vocal-led, dense modern, and large-scale orchestral - so every session compared like for like. No demo-room verdicts, no half-remembered impressions from an earlier listen: this is a direct head-to-head, scored against the published dacs reference list at the matching price tier.
What the 0.0-point score gap actually means
The score gap between the SMSL DO100 PRO and the SMSL RAW-MDA1 is within rounding distance of zero. Same rubric, same reference list, same ears - so when the numbers land this close, the differences are signature, not skill. Read the pros and cons side by side: wherever one piece's strength is the other's compromise is exactly where you'll hear it in real listening.
What would flip the verdict
Neither piece scores higher in any audible way, so the choice is character and context. Take the SMSL DO100 PRO if its pros sound like the system you're building; take the SMSL RAW-MDA1 if its first paragraph reads more like the music you actually play. System pairing - amp synergy for headphones and DACs, room behaviour for speakers, software stability for sources - is where these two diverge in practice. Read both reviews end to end: the pros and cons summarise, but the prose tells you which one belongs in your chain.
Common questions about this comparison
What's the real-world difference between the SMSL DO100 PRO and the SMSL RAW-MDA1?
On the rubric the SMSL DO100 PRO and the SMSL RAW-MDA1 are a wash, 8.0 and 8.0, inside rounding distance. Where they really split is voicing: the DO100 PRO runs a touch brighter, the RAW-MDA1 warmer. Each review flags something different - the DO100 PRO's "Multiple selectable digital filters" against the RAW-MDA1's "XLR + RCA outputs, 1/4" + 4.4mm headphone outs". That contrast, not the score column, is what you're actually choosing between.
Which should you buy, the SMSL DO100 PRO or the SMSL RAW-MDA1?
It's a rubric tie at effectively the same price, so it comes down to character and system fit. Line each one's pros up against your chain and the music you play most - the SMSL DO100 PRO for "Bright, functional front display", the SMSL RAW-MDA1 for "Silent operation - no hiss, no transformer hum".
Where they rank
This page is the head-to-head - the buying guides put both of these up against the whole field.